/**
 * `--db <preset>` - wire a Drizzle data layer into a freshly scaffolded app, so a human (or a coding
 * agent) starts from a correct, production-grade DB setup instead of inventing one. nifra ships NO DB
 * abstraction (that belongs to Drizzle/libSQL, not a web framework) - this just bundles the existing
 * tool, the Redwood-style "batteries available" move: a starter schema, a typed client, a migration
 * config, scripts, and env, all rip-out-able.
 *
 * Three presets, by runtime fit:
 *   - drizzle-libsql   - SQLite that runs EVERYWHERE incl. the edge (local file, or Turso). The default
 *                        cross-runtime answer.
 *   - drizzle-postgres - Postgres (postgres.js) on Bun/Node/Deno.
 *   - drizzle-sqlite   - Bun's built-in `bun:sqlite` (sync, local file). Bun-only.
 *
 * The starter `notes` table follows the production-grade DB defaults for its dialect; what a dialect
 * can't express inline (CHECK constraints, RLS, uuidv7) is called out in a comment, per those rules.
 */
export declare const DB_CHOICES: readonly ["drizzle-libsql", "drizzle-postgres", "drizzle-sqlite", "prisma-postgres", "prisma-sqlite", "kysely-postgres"];
export type DbChoice = (typeof DB_CHOICES)[number];
/** ORM family of a preset - drives the auth adapter, the AGENTS DB rules, and the `c.db` query idiom. */
export type Orm = "drizzle" | "prisma" | "kysely";
export interface DbPreset {
    /** Human label for messages, e.g. "Drizzle + libSQL". */
    readonly label: string;
    /** Which ORM/query-layer this preset wires (its query idiom + migration story differ). */
    readonly orm: Orm;
    /** SQL dialect, for the auth adapter's `provider` mapping. */
    readonly dialect: "postgres" | "sqlite";
    /** One-line runtime-fit note (next-steps message + AGENTS.md). */
    readonly note: string;
    readonly deps: Readonly<Record<string, string>>;
    readonly devDeps: Readonly<Record<string, string>>;
    readonly scripts: Readonly<Record<string, string>>;
    /** Relative path → file contents to write into the scaffolded app. */
    readonly files: Readonly<Record<string, string>>;
}
export declare const DB_PRESETS: Readonly<Record<DbChoice, DbPreset>>;
/** Write a DB preset's files into `target` and ensure local DB artifacts + .env are gitignored. */
export declare function writeDbFiles(target: string, choice: DbChoice): Promise<void>;
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